cookiesession contains a drop-in replacement middleware for django.contrib.sessions.middleware.SessionMiddleware to store all session data in a browser cookie instead of the database. The code is based on a snippet from Christopher Lenz.
To prevent user tampering the session dictionary goes through the following encoding steps:
1. The session dictionary is converted into json
2. A sha1 hash is made with the json and the site's SECRET_KEY
3. The json and sha1 hash are concatenated, gzipped and base64 encoded.
Upon decoding:
1. The cookie is base64 decoded and ungzipped
2. The data is split into the sha1 hash and the json data
3. The sha1 hash is regenerated from the received json data and the site's SECRET_KEY
4. If the hashes don't match, a SuspiciousOperation exception is raised. If the hashes match, the json data is converted into a python object and returned.
Management Commands
Two management commands are included to make debugging things easier.
decode_session_cookie
Called as ./manage.py decode_session_cookie and prints the keys and values of the session dictionary.
encode_session_cookie
Encodes key=val arguments into a cookie for manual insertion into your browser for testing purposes. You must call the command as ./manage.py encode_cookie key1=value key2=value
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Requirements:
· Python
· Django
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